What’s the problem?

Kipn said:

giving Epson salt before and after transplanting helps to reduce shock
them plants are probably just having a hard time adjusting to the difference in ph from the old promixhp to the new stuff

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I thought pro mix was ph neutral? Or it buffered itself?

I’ve never had issues transplanting my other crop and it’s from the same bale.

Kipn said:

giving Epson salt before and after transplanting helps to reduce shock
them plants are probably just having a hard time adjusting to the difference in ph from the old promixhp to the new stuff

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I will note this down for the next crop. Thank you

bk78 said:

If I’m only feeding very minimal nutes is it necessary to water with 20% run off every water and feed?

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Not every, but every other is good practice to prevent salt buildup.

bk78 said:

I thought pro mix was ph neutral? Or it buffered itself?

I’ve never had issues transplanting my other crop and it’s from the same bale.

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even if it says it self buffers it self. the new and fresh mix will still have a different ph then the old stuff you have watered for months
it would take several watering to level out to a stable ph again. i have never used that product but ive grown in coca a few times and found that to be a problem when transplanting for me. im sure in a week they will bounce right back
the brown spots can be cal mag deficient but id say its just more ph change stopping the plant from taking enough up
i wouldn't go dumping allot of nutrients on them just yet because if the plant is stressed upping the feeds could do more harm then good damage leave will never go back to looking good though so dont judge by them just pay attention to the new growth

Your little girls are all short on Mg.